Improvement in driving-belts



A. SCHPAKOWSKY.

Driving-Belts.

No, 145,907, Patented Dec. 23,1873.

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UNITED STATES PATENT (DEFIGE.

ALEXANDER SOHPAKOVVSKY, OF ST. PETERSBURG, RUSSIA, ASSIGNOR TO BRUNO HOFFMABK, OF SAME PLACE.

IMPROVEMENT IN DRIVING-BELTS.

Specification forming part of Letters Patent No. 145,907, dated December 23, 1873; application filed November 13, 1873.

To all whom it may concern:

Be it known that I, ALEXANDER. SCHPA- KOWSKY, of St. Petersburg, Russia, have invented or discovered a certain new or Improved Driving-Belt; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters and figures marked thereon--that is to say:

This invention consists of a driving-belt for communicating motion in machinery, formed of a series of links, which are composed each of a single flattened helix of wire, extending the width of the belt, and connected together to form a continuous belt by intermeshing with each other the coils of each pair, and interposing between the alternate portions thereof a transverse rod or bolt.

The manner in which this belt is manufactured is as follows: Iron or other wire is wound by any suitable machine into the form of a flatoval spiral. This spiral is then cut transversely into lengths which correspond with the width of the belt to be manufactured. Each of these lengths constitutes a link. The links are then connected together by pushing the turns or twists of one link between the turns or twists of the next or following link, and by then passing arod transversely through them both, so as to hold them together. The

- rod is hooked or otherwise secured at both ends, and is securely held in position by folding the ends of the wire of each link inward, so as to be parallel with the rod, or nearly so.

The invention will be fully understood on reference to the accompanying drawings, of which Figure l-represents a portion consisting of three links, a a a, of one of my driving-belts, and Fig. 2 an edge view of the same. Figs. 3

and 4 represent two links in the position they occupy relatively to each other before the illsertion of the rod which holds them together. From an inspection of these figures it will be seen that each link consists of wire formed into what I have hereinbefore termed a fiat oval spiral or helix, the length of the spiral or helical link being equal to the width of the belt.

The several links are connected together by pushing the turns or twists of one between the turns or twists of another, as represented in Figs. 3 and 4 by then passing a hooked rod, 0, transversely through them both; afterward pulling the links tight, as shown in Figs. 1 and 2, and finally folding the ends I) b inward, as seen in Fig. 1.

The belt can be made of any required length by employing the requisite number of links, the two end links being connected together in the manner already described, so as to make the belt endless. The belt can also be made of any required width by cutting the wire spiral into pieces of appropriate length.

What I claim, and desire to secure by Letters Patent, is-- A driving-belt composed of a series of flattened helices, a a a, connected by intermeshing with each other the coils of each helix, and and securing them by means of the rod 0, substantially as herein set forth.

In witness whereof I, the said ALEXANDER SonPAxowsKY, have hereunto set my hand this tenth day of October, one thousand eight hundred and seventy-three.

' A. SOHPAKOVVSKY. Witnesses:

JOHN Kos, Oflicer street, 6. HY. SonLENK, Wasst'ly Ostrofi', 0n the Great Prospect avenue, between 15 and 16 line, house 44. 

